Carbid-feed for acetylene-generators.



No. 878,310. PATENTED FEB. 4, 1908. A. S. PHELPS. JR. GARBID FEED FOR AGETYLENE GENERATORS APPLICATION FILED MAY 29,1906.

2 SHEETS-SHEET 1.

3 mm Mm Wihwaaeo PATENTED FEB. 4, 1908.

A. s. PHELPS, JR. GARBID FEED FOR AGETYLENE GENERATORS.

APPLICATION FILED MAY 29. 1906.

2 SHEBTSSHEET 2.

ALGERNON S. PHELPS, JR., OF CHICAGO, ILLINOIS.

CARBID-FEED FOR AGETYLENE GENERATORS.

Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed May 29. 1906- Serial No. 319.897-

-To all whom it may concern:

. Be it known that I, ALGERNON S. PHELPS, Jr. citizen of the United'States of America, residing at Chicago, Cook county, Illinois, have invented certain new and useful Imrovements in Carbid-Feed for Acetyleneenerators; and I do hereby declare the following to be a full, clear, and exact description of the-invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to im rovements in acetylene gas generators an in particular to an im roved carbid feed.

The 0 'ect of my'invention is to provide a carbid eed which will comply with all the well known requirements of the Underwriters Association, and which will be .capable of automatically adjusting itself so as to feed various sizes of calcium carbid with equal facility and with uniformity, thus insuring a close re lation of the gas pressure.

Having these 0 jects 1n View, the invention consists in an improvement upon the carbid feed mechanism set forth in Patent 783732 heretofore granted to me. By the present .im rovement I have provided means operating 0th to prevent the caking of the.

carbid within the mouth of the magazine and to prevent the discharge of carbid therefrom during the feeding motion of the shoe.

. with the operating mechanism; and Figs. 4,

5 and 6 are details.

Referring to the drawings more in detail, the magazine casing a of any ordinary construction, has supported therein upon ad-v justable stops 1), a carbid holder 0 provided with a downwardly inclined deflectlng plate or shed d, servin to confine the egress of the carbid to one si e of the magazine. Below this'shed d the wall e of the lower funnel shaped portion of the magazine is disposed at substantially right angles to the deflecting plate (1, from vwhichLit will be seen that the.

carbid approaches the discharge 0 enin through this chute from one s' e. X fee shoe f is su ported by a yoke pivoted at g to swing belbw and closely adjacent to the mouth of the chute, said mouth and the shoe both being concentric to the pivotal point g, whereby the reciprocating motion of the feed shoe across the mouth is unimpeded by reason of the fact. that thespace etween the two is at all timesconstant.

An open hook link his pivotally connected with the feed shoe f and with its open hook end engagps the deflected portion of a rock shaft '11, w ich is arranged to be rocked upon the descent of the gasometer bell in any approved manner, for instance, as shown in my atent above referred to.

T e device thus far described is substantially identical in construction and operation with that set forth in detail in my patent above referred to and needs no further descri tion.

mod to the lower rear portion of the shoe f by casting integrally therewith'or riveted or bolted thereto is a cam hook Z which moves with said shoe. Upon ears carried by the lower portion of the magazine is pivoted at m a dog n formed as a bellcrank lever, counterweighted at 0 and provided with a cross bar lying below and transversely of a series of ars q, pivoted at r to the magazine. The bars 9, are provided with fingers s curved concentrically to the pivotal point 1' and arranged for reciprocation independently of each other within the slot t arranged in the rear" of the magazine throat adjacent to its mouth.

The relation of the several arts .just described is such that when t e feed shoe occupies a osition beneath the mouth of the ma azine t e in a, of the dog, is, by the cam surface of the 00k 1, depressed and the bars %are held in an elevated position by the cross ar p with the fin erss retracted from the slot t, leaving the t roat of the ma azine un-' obstructed, so that the carbid may how freely therethrough into the shoe f. As the gasometer bell descends and the shaft'iis rocked, the shoe is thrown to the rear from the mouth of the magazine, dro ping into the generator its char e of car id. This movement of the feed s oe causes the cam hook l to move away from the pin a of the dog n, permitting the bars q to drop the fingers s, which pass through the slot 25, and across the throat of the magazine until they contact with the front wall of the same, eilectually shutting off any downward flow of the carbid during the time the t the shoe is removed from the mouth of the magazine.

By arranging the several bars 9 with their fingers s entirely independent of each other, a certainty of operation is attained by reason of the fact that should one of the fingers meet with an'obstruction, such as a large lump of carbid, the other fingers will pass to their proper position independently of the obstructed one. This would not be the case if the several teeth 8 were carried by one bar after the manner of the teeth of a comb.

Within the chute leading fromthe magazine to the feed shoe is arranged a defiector 41 formed by a protuberance on the u per wall of the part .2 immediately in front oi'the opening t, its iunction being to guard the opening from the direct line of flow of the carbid so as to facilitate the entrance-oi the fingers and prevent their jamming by particles of carbid wedging between them and the sides of the opening.

The relation of the pins 15 and the cross bar p to the pivotal point "In and the curve of the cam hock Z is such that the bars g, with their fingers 8, remain stationary during the initial movement of the'ieed shoe in either direction. Just before the feed shoe clears the mouth of the magazine, the fingers s are dropped quickly into ,a position to shut ofiT-the magazine chute, their rate of travel being much reaterthan that of the shoe; likewise the l ingers remain in this position until the shoe has again practically closed the mouth or the throat when they are as quickly withdrawn.

The particular features of construction utilized for the operation of these parts might be modified to a considerable degree without departing from the spirit of my invention, which resides primarily in. the are rangement of independent fingers acting as a cut=ofi to prevent the fiow of the carbid at certain times and also to break up or prevent the caking of the carbid Within the magazine throat.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a carbid feed, the combination, with a feed shoe, of a plurality of fingers tending to simultaneously interpose from above into the path of travel of the oarbid to the shoe, and means for controlling said fingers.

2. In a carbid feed, the combination, with a feed shoe, of a plurality of independent fingers tending to interpose from'above into the path of travel of the carbid to the shoe,

and means actuated by tne movement of theshoe to control the fingers.

3. In a carbid feed, the combination, with 1 a feed shoe, of a plurality of fingers tending svasio ment of the fingers, and means carried by the shoe and actuated during its feed movement to permit the interposition of the fingers in the path of the carbid and near the close of the return movement of the shoe to withdraw said fin ere.

5. In a carbid eed, the combination with a feed shoe, of a plurality of independent fingers pivotally mounted in such a position as to tend by gravity to interpose from above into the path of travel of the carbid to the shoe, a pivoted dog restraining the movement of the fingers, and means carried by the shoe and-actuated after the beginning of its feed movement to permit the inter osition of the fin ers in the path of the car id and near the close of the return movement of the shoe to retract the dog to a position to with-' draw said fingers, the movement of the fing ers being accelerated beyond that of the Si 08.

6. The combination, with a carbid magazine, and a feed shoe, of aplurality of independent fingers pivotally mounted in such a position as to interpose from above into the path of travel of the carbid from the magazine to the shoe, a pivoted dog controlling the movement of the fingers, a can; hook carried by the shoe and acting upon the dog during the feed movement of the shoe to cause the interposition of the fingers and during the return movement of the shoe to withdraw the fingers, the relation of the cam surface of the hook to the dog being such as to accelerate the movement of the fingers beyond that of the shoe.

7. .The combination, with a magazine, a feed shoe, and a chute leading from the magazine to the feed shoe, of a cut-off device comprising spaced fingers entering the chute through an ppening out of the direct line 0 travel of the material therein.

8. The combination, with a magazine, a feed shoe, and a chute leading from the magazine to the shoe, one of the walls of the chute provided with a deflector and an opening behind said deflector, of a cut-ofi' device comprising spaced fingers arranged to enter the chute through the opening, and means to control the operation of the cut-oil device and feed shoe.

9. The combination, with a magazine, a feed shoe, and a chute leading from the magazine to the shoe, a plurality of fingers arranged to interpose into the path of travel of the material through the chute to the shoe, and means mounted in said chute to de-' point of entrance ofthe" fingers to deflect the fleet the flowing material from the point of carbid therefrom.

entrance of the fingers. In testimony whereof I afiix my signature 10. The combination, with a carbid magato this specification, in the presence of two 5 zlilne, a feed shoe, fitndha chute1 lealding ffrgliln Witnesses.

t e ma azine to t e s oe, a ura it o v gers ter iding to interpose in to the path of ALGERNON PHELPS travel of the carbid through the chute to the Witnesses:

shoe, and a protuberance formed upon the W. R. JEWELL, Jr.,

10 wall of said chute immediately in front of the L. A. SMITH. 

